REPL to any browser in the cloud
github.com
github.com
I guess if people turn this into a server would be awesome.
Sometimes I want to test cross-browser compatibility. For example, Firefox uses textContent instead of innerText. I can easily verify this without having to have Firefox and Chrome (and IE, Opera, etc) on the same machine at the same time.
The case you mentioned gets me every time: https://i.cloudup.com/ZQApueTFl6.png
Could you please elaborate?